- Wheel Loader
- 986K (S/N: NL81-UP; SWH1-UP)
- 988K (S/N: T8E1-UP; L8X1-UP; LWX1-UP; TWX1-UP)
Introduction
This Special Instruction provides the information about the parts and procedures that are required to install the 458-3103 Precleaner Kit on certain 988K and 986K Wheel Loaders.
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.
Note: Cleanliness is an important factor. Before the removal of any component, clean the exterior of the component to prevent dirt from entering the internal mechanism.
Safety Section
Do not perform any procedure that is outlined in this publication until you have read the information and you understand the information. Do not order any parts until you have read the information and you understand the information.
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Disconnect batteries before performance of any service work. |
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Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool. |
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Do not attempt to disassemble or assemble this machine until you read and understand the disassembly and assembly instructions. Improper disassembly and assembly procedures could result in injury or death. |
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Accidental engine starting can cause injury or death to personnel working on the equipment. To avoid accidental engine starting, disconnect the battery cable from the negative (−) battery terminal. Completely tape all metal surfaces of the disconnected battery cable end in order to prevent contact with other metal surfaces which could activate the engine electrical system. Place a Do Not Operate tag at the Start/Stop switch location to inform personnel that the equipment is being worked on. |
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Never weld or solder any charged components. |
Required Parts
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| Illustration 1 | g06368444 |
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| 458-3103 Precleaner Kit | |||
| Item | Qty | Part Number | Description |
| 1 | 1 | Cab Air Precleaner Gp | |
| 2 | 7(1) | Hard Washer | |
| 3 | 6 | Bolt | |
| 4 | 6 | Nut | |
| 5 | 1(2) | Hose | |
| 6 | 2 | Hose Clamp | |
| 7 | 1 | Wiring Harness | |
| 8(3) | 1 | Clip | |
| 9(3) | 1 | Screw | |
| 10 | 3 | Cable Strap | |
| (1) | 986K uses 6 |
| (2) | |
| (3) | 988K Only |
Removal Procedure
- Remove and retain the cover assembly (A) and associated hardware.
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Illustration 3 g06368455 (B) Bracket assembly
(C) Precleaner group
(D) Band clamp
(E) Hose - Remove bracket assembly (B), precleaner group (C) and discard the parts.
- Remove band clamps (D), hose (E) and discard the parts. Refer to Illustration 3.
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| Illustration 2 | g06368449 |
| (A) Cover assembly | |
Installation Procedure
- Locate precleaner (1) on the bracket assembly (F). Secure precleaner (1) using hard washer (2), bolt (3) and nut (4).
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Illustration 5 g06368631 (G) Filter and duct group
(1)341-8391 Cab Air Precleaner Gp
(5)5P-1466 Hose
(6)291-3959 Hose Clamp - Connect hose (5) to precleaner group (1). Secure hose (5) using hose clamp (6).
- Connect other end of hose (5) to filter and duct group (G). Secure hose (5) using hose clamp (6). Refer to Illustration 5.
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Illustration 6 g06368837 (F) Bracket assembly
(H) Wiring Harness
(2)5P-4116 Hard Washer
(7)221-5377 Wiring Harness
(8)4P-7581 Clip
(9)9X-2044 Screw
(10)7K-1181 Cable Strap - Route the wiring harness (7) onto bracket assembly (F) as shown in Illustration. Secure the harness using clip (8), hard washer (2), and screw (9).
- Connect wiring harness (7) to existing harness (H) assembly from air conditioner group. Refer to Illustration 6.
- Secure wiring harness (7) using cable straps (10). Refer to Illustration 6.
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Illustration 7 g06368449 (A) Cover assembly - Install cover assembly (A) and associated hardware that were saved in step 1. Refer to removal procedure for Existing Precleaner Kit.
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| Illustration 4 | g06368614 |
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(F) Bracket assembly
(1) (2) (3) (4) | |
